Knog Boomer Taillights feature a waterresistant, superslim, flexible silicon body with a 1 watt LED. Waterresistant flexible silicon body with integrated lens wraps around posts, stays and anything else 25mm in diameter or larger Superbright highpowered LED puts out 30 lumens 12 hours of burn time in constant mode, 72 hours flashing Four modes constant on, strobe flash, fast flash, random strobe Hold button down in any mode to turn off Uses 2 AAA batteries included
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